You can get polygon buffer from http://angusj.com/delphi/clipper.php and
make cython interface to it.
HTH
Niki
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On Mon, Feb 13, 2012 at 1:01 AM, Niki Spahiev niki.spah...@gmail.com wrote:
You can get polygon buffer from http://angusj.com/delphi/clipper.php and
make cython interface to it.
This should be built into GEOS as well, and the shapely package
provides a python wrapper already.
-Chris
HTH
HI Chris and All,
On 10 February 2012 17:53, Chris Barker wrote:
Andrea,
Basically I have a set of x, y data (around 1,000 elements each) and I
want to create 2 parallel curves (offset curves) to the original
one; parallel means curves which are displaced from the base curve
by a constant
Andrea,
Here is how to do it with splines. I would be more standard to return
an array of normals, rather than two arrays of x and y components, but
it actually requires less housekeeping this way. As an aside, I would
prefer to work with rotations via matrices, but it looks like there's
no
On Fri, Feb 10, 2012 at 9:38 AM, Andrea Gavana andrea.gav...@gmail.comwrote:
Hi All,
my apologies for my deep ignorance about math stuff; I guess I
should be able to find this out but I keep getting impossible results.
Basically I have a set of x, y data (around 1,000 elements each) and
Jonathan,
On 12 February 2012 20:53, Jonathan Hilmer wrote:
Andrea,
Here is how to do it with splines. I would be more standard to return
an array of normals, rather than two arrays of x and y components, but
it actually requires less housekeeping this way. As an aside, I would
prefer to
Charles,
On 12 February 2012 21:00, Charles R Harris wrote:
On Fri, Feb 10, 2012 at 9:38 AM, Andrea Gavana andrea.gav...@gmail.com
wrote:
Hi All,
my apologies for my deep ignorance about math stuff; I guess I
should be able to find this out but I keep getting impossible results.
On Sun, Feb 12, 2012 at 1:21 PM, Andrea Gavana andrea.gav...@gmail.comwrote:
Jonathan,
On 12 February 2012 20:53, Jonathan Hilmer wrote:
Andrea,
Here is how to do it with splines. I would be more standard to return
an array of normals, rather than two arrays of x and y components, but
On Sun, Feb 12, 2012 at 1:26 PM, Andrea Gavana andrea.gav...@gmail.comwrote:
Charles,
On 12 February 2012 21:00, Charles R Harris wrote:
On Fri, Feb 10, 2012 at 9:38 AM, Andrea Gavana andrea.gav...@gmail.com
wrote:
Hi All,
my apologies for my deep ignorance about math stuff;
Andrea,
I realized that my answer wouldn't be complete, but as people have
pointed out that's a substantially more difficult question, so I
wanted to give you a complete answer to just a subset of your problem.
I'm currently writing a variant that avoids the overlapping normal
vectors by
Jonathan,
On 12 February 2012 21:59, Jonathan Hilmer wrote:
Andrea,
I realized that my answer wouldn't be complete, but as people have
pointed out that's a substantially more difficult question, so I
wanted to give you a complete answer to just a subset of your problem.
I'm currently
On Sun, Feb 12, 2012 at 20:26, Andrea Gavana andrea.gav...@gmail.com wrote:
I know, my definition of parallel was probably not orthodox enough.
What I am looking for is to generate 2 curves that look graphically
parallel enough to the original one, and not parallel in the true
mathematical
Hi All,
my apologies for my deep ignorance about math stuff; I guess I
should be able to find this out but I keep getting impossible results.
Basically I have a set of x, y data (around 1,000 elements each) and I
want to create 2 parallel curves (offset curves) to the original
one; parallel
Andrea,
Basically I have a set of x, y data (around 1,000 elements each) and I
want to create 2 parallel curves (offset curves) to the original
one; parallel means curves which are displaced from the base curve
by a constant offset, either positive or negative, in the direction of
the
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